Backflow Preventer Freeze Protection

These are typically covered in blue rubber and are located before and after the actual backflow device.

Backflow preventer freeze protection. Backflow prevention assemblies must be drained for the winter in areas where freezing temperatures may occur. However pressure vacuum breakers only protect the assembly itself not the water lines. Kgmcare backflow preventers protection insulated cover pouch for winter pipe freeze protection water sprinkler valve box and controller 16 x 20 4 5 out of 5 stars 25 12 79 12. A safe t cover industrial enclosure provides freeze protection and vandal protection for backflow preventers pumps and valves.

The benefits of this type of sprinkler backflow preventer valve are its low cost and simplicity. 1 turn off the shut off valve on most residential backflow devices there are two shut off valves. It is utilized on potable water applications for high health hazard protection from backsiphonage and backpressure of contaminated water. Does a backflow insulation.

Backflow insulation bags and pouches can be a great option for protecting backflow prevention valves from freezing during the cold spring fall and winter months. Safe t cover s heated enclosures are standard asse 1060 certified for class i ii and iii. Double check backflow preventers which do not have a relief valve to signal when something is wrong can freeze in the winter and provide zero backflow protection until a certified tester discovers the problem during their routine testing. These assemblies are easy to install maintain and repair.

Proper draining procedures insulation from freezing using heat tape and heated protective enclosures are all methods of freeze protection. Should you blowout the piping system downstream of the backflow prevention assembly make sure the. This is the lower of the two shut off valves. However sometimes the effects of frozen backflow preventers are not known for extended periods of time.

If water inside the assembly should freeze damage to the assembly and the system may occur. See the ball valve freeze protection instructions for more details 3. A slow drop to freezing won t be a problem but a continual drop that stays there for a while could cause a backflow preventer to freeze and crack. Some models of pressure vacuum breaker assemblies include built in freeze protection valves.

Backflow prevention assembly c and d and all testcocks. Leave in half open half closed 45o degree position to allow for full drainage of ball valve shut offs. Years of engineering protective hot boxes has led to our tried and tested aluminum design. See our backflow insulation bags for sale here these polar parkas are slid over the backflow valve and attached piping to produce a blanket of warmth.